[fix](trash core) fix get trash directory core when stop be

[yujun777]

Proposed changes

for branch 2.0, when stop be, it may occure coredump when get trash directory size.

it take a lot effect to find the reason but still unknown why. since it's only occure in branch 2.0 and stop be, we just make a code defense. just ignore the io exception here.

Further comments

If this is a relatively large or complex change, kick off the discussion at dev@doris.apache.org by explaining why you chose the solution you did and what alternatives you considered, etc...

[yujun777]

run buildall

[github-actions]

clang-tidy review says "All clean, LGTM! 👍"

[hello-stephen]

(From new machine)TeamCity pipeline, clickbench performance test result:
the sum of best hot time: 48.27 seconds
stream load tsv: 556 seconds loaded 74807831229 Bytes, about 128 MB/s
stream load json: 20 seconds loaded 2358488459 Bytes, about 112 MB/s
stream load orc: 65 seconds loaded 1101869774 Bytes, about 16 MB/s
stream load parquet: 31 seconds loaded 861443392 Bytes, about 26 MB/s
insert into select: 29.8 seconds inserted 10000000 Rows, about 335K ops/s
storage size: 17162608635 Bytes